The MAX3869 is a complete, single +3.3V laser driver
for SDH/SONET applications up to 2.5Gbps. The
device accepts differential PECL data and clock inputs
and provides bias and modulation currents for driving a
laser. A synchronizing input latch can be used (if a
clock signal is available) to reduce jitter.
An automatic power control (APC) feedback loop is
incorporated to maintain a constant average optical
power over temperature and lifetime. The wide modulation
current range of 5mA to 60mA and bias current of
1mA to 100mA are easy to program, making this product
ideal for use in various SDH/SONET applications.
The MAX3869 also provides enable control, two current
monitors that are directly proportional to the laser bias and
modulation currents, and a failure-monitor output to indicate
when the APC loop is unable to maintain the average
optical power. The MAX3869 is available in 32-pin TQFP
and small 32-pin QFN packages as well as dice.
Key Features
Applications/Uses
Single +3.3V or +5V Power Supply
64mA Supply Current at +3.3V
Programmable Bias Current from 1mA to 100mA
Programmable Modulation Current from
5mA to 60mA
Bias Current and Modulation Current Monitors
87ps Rise/Fall Time
Automatic Average Power Control with Failure
Monitor
Complies with ANSI, ITU, and Bellcore
SDH/SONET Specifications
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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